[sdiy] best way to convert bipolar to Cmos compatible square/gate?

[Oscar Salas]

I wanted to add that I refer to the cmos 4000 series
> A common op-amp as comparator followed by a 30K resistor to the CMOS input
> does the job.
> CMOS input has clamping diodes to its rails. Maximum Rating is I think (
> see your data-sheet) 10mA. So for a +/-15V supply a 30K will limit the
> current through the clamping diodes about 5mA.
>
>
>
>> At 02:47 PM 20/09/2012, dan snazelle wrote:
>>>or is there a CMOS compatible comparator that reads a bipolar input
>>>and puts out cmos compatible pulses?
>>
>> LT1011 or LT1011A, bipolar with ground referenced open collector output.
>>
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